A zinc ascorbate glycinate co-salt having a formula of MC8H11NO8 and a suggested structure of: Formula (I). Where M is Ca, Mg, or Zn. The divalent metal ascorbate glycinate co-salt is formed as a powder having a metal content of about 8% to about 21% on an anhydrous basis and containing between 0.0-20.0% water.

##STR00001##

Metal-organic framework materials (MOFs) are highly porous entities comprising a multidentate organic ligand coordinated to multiple metal centers, typically as a coordination polymer. MOFs may comprise a plurality of metal centers, and a multidentate organic ligand coordinated via at least two binding sites to the plurality of metal centers to define an at least partially crystalline network structure having a plurality of internal pores, and in which the multidentate organic ligand comprises first and second binding sites bridged together with a third binding site comprising a diimine moiety. The multidentate organic ligand may comprise a reaction product of a vicinal dicarbonyl compound and an amine-substituted salicylic acid to define the first, second and third binding sites. Particular MOFs may comprise 5,59′-(((1E,2E)-ethane-1,2-diylidene)bis-(azaneylylidene))bis(2-hydroxybenzoic acid) as a multidentate organic ligand.

The present disclosure is related to organic acceptor-donor-acceptor compounds as non-fullerene acceptors for use in organic photovoltaics.

An object of the present invention is to provide a highly practical electrolyte solution which has high oxidation resistance and enables dissolution-precipitation of magnesium to proceed repeatedly and stably.

The present invention relates to an electrolyte solution for a magnesium battery comprising a mixture of a compound represented by the general formula [1], a Lewis acid or a compound represented by the general formula [4], and a solvent; an electrochemical device containing the electrolyte solution; and a compound represented by the general formula [1].

##STR00001##

[In the general formula [1], X.sup.1 represents a halogeno group, and R.sup.1 represents an alkyl group having 1 to 10 carbon atoms, which may have a group represented by —SO.sub.3MgX.sup.2 (X.sup.2 represents a halogeno group); a haloalkyl group having 1 to 10 carbon atoms, which may have a group represented by —SO.sub.3MgX.sup.2 (X.sup.2 is the same as described above); an aryl group having 6 to 14 carbon atoms, which may have an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a halogeno group, or a group represented by —SO.sub.3MgX.sup.2 (X.sup.2 is the same as described above); or a biphenyl group which may have a group represented by —SO.sub.3MgX.sup.2 (X.sup.2 is the same as described above).]

Mg[N(SO.sub.2R.sup.4).sub.2].sub.2   [4]

(In the general formula [4], four R.sup.4's each independently represent an alkyl group having 1 to 6 carbon atoms, a perfluoroalkyl group having 1 to 6 carbon atoms, a phenyl group, or a perfluorophenyl group.)

Described herein is a nanostructured silicon carbonaceous composite material and methods for producing the same. The methods include formation of a metal organic framework/silica (MOF/SiO.sub.2) intermediate material and conversion of the MOF/SiO.sub.2 intermediate material to the nanostructured silicon carbonaceous composite material. Relatively inexpensive and/or recycled materials can be used as precursors in manufacturing the nanostructured silicon carbon composition material, which can be used in various applications, including as silicon anode material in a lithium-ion battery.

The present invention relates to an improved process for the preparation of 2,2′,2″-(10-((2R,3S)-1,3,4-trihydroxy butan-2-yl)-1,4,7,10-tetraazacyclododecane-1,4,7-triyl) triacetic acid, gadolinium (III) with iron metal content less than 5 ppm and free gadolinium content less than 10 ppm, which is represented by the formula (1). The present invention further relates to an improved process for the preparation of calcium complex of 10-(2,3-Dihydroxy-1-(hydroxymethyl)propyl)-1,4,7,10-tetraazacyclo decane-1,4,7-triacetic acid known as Calcobutrol (1a) and its sodium salt of formula (1b) with purity greater than 98.0%.

##STR00001##

Monomeric bimetal hydroxycitric acid (HCA) compounds are provided. The subject compounds include a divalent metal (X) bonded to the carboxylic acids of C2 and C3 and a monovalent metal (Y) bonded to the carboxylic acid of C1. Also provided are methods of preparing the subject compounds from a dimeric starting material (e.g., X.sub.3(HCA).sub.2) which include acidifying the dimer to produce a monomeric intermediate which is subsequently neutralized with YOH base. Methods of alleviating at least one symptom associated with a target disease or condition in a subject are provided. Also provided are compositions including the subject monomeric bimetal HCA compounds which find use in a variety of therapeutic applications.

Methods of synthesizing crystalline metal-organic frameworks (MOFs) comprising polytopic organic linkers and cations, where each linker is connected to two or more cations, are provided. In the disclosed methods, the linkers are reacted with a compound of formula M.sub.nX.sub.m, where M is cationic Be, Mg, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Ru, Rh, Pd, Cd, or Hf, X is anionic, n and m are integers. The reacting is buffered by a buffer devoid of metal coordinating functionality when the pKa of the anion is below a threshold related to the lowest pKa of the linker. The reacting is optionally not buffered when the pKa of the anion is at or above this threshold. The disclosed methods lead to product phase MOF in which crystal growth is controlled leading to control over molecular diffusion.

Flow batteries can include a first half-cell containing a first aqueous electrolyte solution, a second half-cell containing a second aqueous electrolyte solution, and a separator disposed between the first half-cell and the second half-cell, The first aqueous electrolyte solution contains a first redox-active material, and the second aqueous electrolyte solution contains a second redox-active material. At least one of the first redox-active material and the second redox-active material is a nitroxide compound or a salt thereof. Particular nitroxide compounds can include a doubly bonded oxygen contained in a ring bearing the nitroxide group, a doubly bonded oxygen appended to a ring bearing the nitroxide group, sulfate or phosphate groups appended to a ring bearing the nitroxide group, various heterocyclic rings bearing the nitroxide group, or acyclic nitroxide compounds.

A hypergolic metal organic framework material for producing a hypergol when combined with an oxidizer, comprising a general structure M1-L-M2, wherein L is an aromatic organic linker comprising one or more unsaturated substituents, and wherein M1 and M2 are same or different metal cations.